642268

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{1327}}^1$

素因数の和:1353

約数の個数: 18

約数和(自身を含む): 1236368

約数和(自身を除く): 594100

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 1327, 2654, 5308, 14597, 29194, 58388, 160567, 321134, 642268]

約数ペア:

[(1, 642268), (2, 321134), (4, 160567), (11, 58388), (22, 29194), (44, 14597), (121, 5308), (242, 2654), (484, 1327)]